Didn't play it but based on the screenshots, I would say improve your textures
The way you control the game hides most of the screen with your finger. Perhaps a virtual joystick in either corner based on whether you are left or right-handed?
Also not sure why your game needs Phone Calls permissions. I wouldn't trust it.

yep the textures that are on the screenshots are not the best and i will have to change them. They got all morphed because it needs special width and hight.
About the joystick I made that the whole background the, whole screen as a joystick so you can put your finger in the corner or anywhere on the screen and you will control the player the same way
Phone calls are googleplay thing they just give the developer the statistics of the phone that the game was downloaded on every game has that

good idea but I would give it a theme. More like a robotron type atmoshpere and not just circles and such. your saving little people or creatures from the bad guys or something like that.
It needs character.
Also have your controls in just one location otherwise your finger is always in the way. Changing the background color really adds no value. It's a design feature that seems just to be there because you learned how to do it. Maybe static backgrounds for each level. Make the point system smaller and bolder.

The gameplay looks fun, others have mentioned the graphics are a bit plain but hey...

I get why the score is transparent but if I were to throw a suggestion I would probably change that to a smaller, opaque number on the top left corner add the high score next to it in different colour so you know what target you have to beat. I'm no game designer though so perhaps my comments mean nothing.

Also I think when you get hit by a red orb something should happen like an explosion or something. Give the game a reason to end (complete destruction) rather than it just being because you hit a red one.

The gameplay looks fun, others have mentioned the graphics are a bit plain but hey...

I get why the score is transparent but if I were to throw a suggestion I would probably change that to a smaller, opaque number on the top left corner add the high score next to it in different colour so you know what target you have to beat. I'm no game designer though so perhaps my comments mean nothing.

Also I think when you get hit by a red orb something should happen like an explosion or something. Give the game a reason to end (complete destruction) rather than it just being because you hit a red one.